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tree-dfa.c (mark_new_vars_to_rename): Protect against calling with a PHI_NODE argument.

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2005-07-25  Richard Guenther  <rguenther@suse.de>

	* tree-dfa.c (mark_new_vars_to_rename): Protect against
	calling with a PHI_NODE argument.

	* tree-flow-inline.h (overlap_subvar): Protect against
	possible overflow.

From-SVN: r102358
This commit is contained in:
Richard Guenther 2005-07-25 14:01:02 +00:00 committed by Richard Biener
parent 7fefc172f1
commit 5c97e2de43
3 changed files with 12 additions and 1 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2005-07-25 Richard Guenther <rguenther@suse.de>
* tree-dfa.c (mark_new_vars_to_rename): Protect against
calling with a PHI_NODE argument.
* tree-flow-inline.h (overlap_subvar): Protect against
possible overflow.
2005-07-25 Paolo Bonzini <bonzini@gnu.org>
* aclocal.m4 (gcc_AC_CHECK_TOOL): Add /bin to default directory.

3
gcc/tree-dfa.c
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@ -708,6 +708,9 @@ mark_new_vars_to_rename (tree stmt)
int v_may_defs_before, v_may_defs_after;
int v_must_defs_before, v_must_defs_after;
if (TREE_CODE (stmt) == PHI_NODE)
return;
vars_in_vops_to_rename = BITMAP_ALLOC (NULL);
/* Before re-scanning the statement for operands, mark the existing

2
gcc/tree-flow-inline.h
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@ -1518,7 +1518,7 @@ overlap_subvar (unsigned HOST_WIDE_INT offset, unsigned HOST_WIDE_INT size,
{
return true;
}
else if (offset < sv->offset && (offset + size > sv->offset))
else if (offset < sv->offset && (size > sv->offset - offset))
{
return true;
}